Manuale d’uso / di manutenzione del prodotto ME540A-ST del fabbricante Black Box
Vai alla pagina of 26
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500 ) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation , 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.
FEDERAL COMMUNICATIONS COMMISSION AND CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of the Canadian Department of Communications.
FOM LINE DRIVER—ST AN D S M 3 Contents Chapter Page.
FOM LINE DRIVER—ST AND S M 4 Protocol — Speed — Maximum Distance — Operation — No. of Drops Supported — Interface — Connectors — Indicators — User Controls — Link Budget — Fiber .
FOM LINE DRIVER—ST AN D S M 5 2.1 Ports 2.2 Speed and Distance Figure 2-1. The FOM Line Driver . CONNECTORS TX RX CONNECTORS TX RX DB-9 TERMINAL BLOCK W ALLMOUNT POWER SUPPL Y 2.
FOM LINE DRIVER—ST AND S M 6 3.1 Network Mode NOTE There is no collision detection. Figure 3-1. All units configured in network mode. TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX 3. Configurations Fiber Cabling 232/485/C.
FOM LINE DRIVER—ST AN D S M 7 3.2 Master/Slave Mode Figure 3-2. One unit configured as a master , all others as slaves. TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX A B A B A B A B TX RX TX RX TX.
FOM LINE DRIVER—ST AND S M 8 3.3 Point-to-Point Figure 3-3. P oint-to-point—Both units configured as masters. NOTE The same interface is not required on both sides.
FOM LINE DRIVER—ST AN D S M 9 4.1 Setup or S1, P osition 1—Mode Select S1, P osition 2—Master/Slave Select NOTE T o use the following switch positions appropriately, you should have a firm understanding of your network requirements. S1, P ositions 3 through 6—RS-485 Failsafe/Biased Line S1, P ositions 7 and 8—RS-485 T ermination 4.
FOM LINE DRIVER—ST AND S M 10 F iber optic Cable Connections Chapter 3, Configurations Section 4.2 Section 4.3 Section 4.4 4.2 RS-232 Set XW1. DB9 Pinouts DCE DTE 2—TX Data 2—RX Data 3—RX Data.
FOM LINE DRIVER—ST AN D S M 11 4.3 RS-485 Connect the wire to the terminal block. Set S5. Set W4, W5, and W6. F or 4-wire operation: F or 2-wire operation: Set S1.
FOM LINE DRIVER—ST AND S M 12 Biased, Failsafe Operation (S1, positions 3 through 6). NOTE To use S1 positions 3 through 6 appropriately , you should have a firm understanding of your network requirements. Figure 4-1. Biased/Failsafe Operation Switches (RS-485).
FOM LINE DRIVER—ST AN D S M 13 4.4 20-mA Current Loop (Point to Point) NOTE T o use the following switch positions appropriately, you should have a firm understanding of your network requirements. Connect the wire to the terminal block. Set S5. Set S2 and S3.
FOM LINE DRIVER—ST AND S M 14 Figure 5-1. Circuit board with RS-232 options. + + + + + - + + + + + + B - A + B - A Rx Tx 1 2 3 4 5. Quick Setup Guide RX A X W 1 B X W 1 A S1 W3 C B A W2 TX A RX B TX B RX A TX A RX B TX B Slave Master Network 20mA RS-485 RS-232 Loopback Switch KEY 0 = Open/Off 1 = Closed/On S1 Pos.
FOM LINE DRIVER—ST AN D S M 15 Figure 5-2. Circuit board with RS-485 options. + + + + + - + + + + + + B - A + B - A Rx Tx 1 2 3 4 RX A TX A TX B A S5 S1 W6 W5 W4 B B AC RX B Slave Master Network 20m.
FOM LINE DRIVER—ST AND S M 16 Figure 5-3. Circuit board with 20-mA current-loop options. + + + + + - + + + + + + B - A + B - A Rx Tx 1 2 3 4 RS-232 A S3 S2 S1 A B B A BC B A RX B RX A TX B TX A RX A.
FOM LINE DRIVER—ST AN D S M 17 6.1 Application Problems Do this befor e you call for technical support 6.2 Calling Your Supplier 6.3 Shipping and Packaging 6.
FOM LINE DRIVER—ST AND S M 18 Application Diagram forms are found on pages 19, 21, and 23. You may be asked to fax your diagram to the Technical Support department.
FOM LINE DRIVER—ST AN D S M 19 Local Node Remote Node XW2 XW2 XW1 XW1 W3 W3 W2 W2 S5 S5 W4 W4 W5 W5 W6 W6 S2 S2 S3 S3 S1: S1: NOTE 0 = Open or Off 1 = Closed or On NOTE 0 = Open or Off 1 = Closed or.
FOM LINE DRIVER—ST AND S M 20.
21 Local Node Remote Node XW2 XW2 XW1 XW1 W3 W3 W2 W2 S5 S5 W4 W4 W5 W5 W6 W6 S2 S2 S3 S3 S1: S1: NOTE 0 = Open or Off 1 = Closed or On NOTE 0 = Open or Off 1 = Closed or On 1 12 2 3 34 4 55 6 67 7 88.
FOM LINE DRIVER—ST AND S M 22.
23 Local Node Remote Node XW2 XW2 XW1 XW1 W3 W3 W2 W2 S5 S5 W4 W4 W5 W5 W6 W6 S2 S2 S3 S3 S1: S1: NOTE 0 = Open or Off 1 = Closed or On NOTE 0 = Open or Off 1 = Closed or On 1 12 2 3 34 4 55 6 67 7 88.
FOM LINE DRIVER—ST AND S M 24.
FOM LINE DRIVER—ST AN D S M 25.
1000 Park Drive • Lawrence, P A 15055-1018 • 724-746-5500 • Fax 724-746-0746 © Copyright 1998. Black Box Corporation. All rights reserv ed..
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Black Box ME540A-ST è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Black Box ME540A-ST - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Black Box ME540A-ST imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Black Box ME540A-ST ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Black Box ME540A-ST, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Black Box ME540A-ST.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Black Box ME540A-ST. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Black Box ME540A-ST insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
